3 free agents who could help the Cowboys improve their struggles against the run

The Dallas Cowboys have been active in NFL free agency, though not necessarily in the way fans and analysts might have hoped.
They've re-signed most of their own free agents and brought in four additional outside players. After restructuring the contracts of CeeDee Lamb and Dak Prescott, many expected the Cowboys to target some high-tier free agents, but, to little surprise, they haven’t.
That said, free agency is far from over, and there’s still plenty of time for the Cowboys to further improve their roster.
MORE: Cowboys reportedly not interested in perfect free agent addition
Here are three players the Cowboys could sign to help strengthen their run defense:
Levi Onwuzurike, DT
Levi Onwuzirike is exactly the kind of low-budget move the Cowboys would be willing to make, with Spotrac projecting a two-year deal worth around $9 million.
Onwuzirike could start alongside Osa Odighizuwa, ranking 46th in pass-rush grade and 41st in run-defense grade out of 219 defensive linemen, according to PFF.
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While he recorded just one tackle for loss last season, Onwuzirike also had 13 QB hits. This type of move would allow the Cowboys to free up resources on draft day, giving them the flexibility to address other positions.
Calais Campbell, DL
Calais Campbell, at 38 years old, is likely still weighing retirement, but he remains productive in both stopping the run and pressuring the quarterback.
Last season, Campbell recorded five sacks, five pass deflections, and 12 tackles for loss. Those 12 tackles for loss would have tied Micah Parsons for the most on the Cowboys' roster.
MORE: Cowboys can immediately bolster roster from best available free agents
While this is the kind of move that could get the Cowboys mocked by critics, it’s exactly the type of addition that could significantly strengthen the Cowboys' run defense in the short term.
Preston Smith, EDGE
Preston Smith, like Campbell, is only a short-term solution due to his age (32) and the steady decline in his play.
However, despite his age showing, Smith can still get after the quarterback and help address the Cowboys' run-game struggles at an affordable price.
MORE: Jerry Jones is viewed as the NFL's biggest loser at the start of free agency
Last season, Smith recorded four and a half sacks along with five tackles for loss. While he’s not the long-term answer, Smith could be a valuable addition, providing depth and contributing on both rushing and passing downs.
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